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WO2008157386A1 - Gestion de fibre extensible - Google Patents

Gestion de fibre extensible Download PDF

Info

Publication number
WO2008157386A1
WO2008157386A1 PCT/US2008/066965 US2008066965W WO2008157386A1 WO 2008157386 A1 WO2008157386 A1 WO 2008157386A1 US 2008066965 W US2008066965 W US 2008066965W WO 2008157386 A1 WO2008157386 A1 WO 2008157386A1
Authority
WO
WIPO (PCT)
Prior art keywords
cabinet
communications
access
recited
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2008/066965
Other languages
English (en)
Inventor
Jeremy James Gallagher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amphenol Network Solutions Inc
Original Assignee
Telect Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telect Inc filed Critical Telect Inc
Publication of WO2008157386A1 publication Critical patent/WO2008157386A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4452—Distribution frames
    • G02B6/44526—Panels or rackmounts covering a whole width of the frame or rack

Definitions

  • the following disclosure relates generally to expandable fiber management, fiber management systems, and failure restoration techniques.
  • Optical fibers can transmit large volumes of digital data and voice signals over relatively long distances, with little or no signal loss. For this reason, optical fibers are widely used in the telecommunications field. As the use of optical fibers has increased, new systems have been developed for managing and organizing the larger numbers of optical fibers.
  • typical optical fiber management systems include cable management structures for storing the fibers or connecting the fibers to one or more other fibers and/or fiber optic devices, such as attenuators, connectors, switches, multiplexers, splitters/combiners, or splices.
  • fiber management systems are often mounted to a wall, a utility pole, or any other suitable mounting structure, including the ground.
  • it is often difficult to access the optical connectors, splices, etc., to connect or disconnect the optical fibers. Accordingly, there is a need for a fiber management apparatus that provides easy, unimpeded access to the optical fibers in the apparatus.
  • optical fiber for digital communications e.g.
  • a communications management apparatus may include a cabinet, a chassis coupled to the cabinet, and a panel coupled to the chassis with a hinge.
  • the chassis may be slideable outward from the cabinet and the panel may pivot relative to the chassis to expose the optical circuits on the back of the panel.
  • a method for managing fibers may include, for example, opening a cabinet to access a chassis and a panel, sliding the chassis outward from the cabinet and pivoting the panel relative to the chassis to access circuits on the back of the panel.
  • a communications equipment management system may include a first cabinet with a first access feature for routing a communications fiber from the first cabinet, a second cabinet with a second access feature for routing the communications fiber to the second cabinet, an attachment provision to attach the first cabinet to the second cabinet, a sealing provision to seal a junction between the first cabinet and the second cabinet, and a pass-through for routing the communications fiber from the first cabinet through the pass-through and the first access feature to the second cabinet through the second access feature.
  • a method of managing communications equipment may include providing a first cabinet to manage a communications fiber, the first cabinet including a first access feature and a pass-through for routing communications fiber from the first cabinet. Providing a second cabinet for managing a communications fiber, the second cabinet including a second access feature for routing communications fiber to the second cabinet. Then placing the second cabinet proximate the first cabinet such that communications fiber may pass from the first cabinet through the pass-through and the first access feature to the second cabinet through the second access feature, and attaching the first cabinet to the second cabinet.
  • a device may include a cabinet and a panel coupled to the cabinet for mounting optical circuits.
  • the panel may include at least one feed adapter for terminating optical fiber that are in use and a parking lot for terminating optical fibers that are not in use.
  • a method for restoring fiber optic communication may include terminating at least one optical fiber in a parking lot for future use. If failure of an optical fiber is detected, the damaged optical fiber can be replaced with the terminated optical fiber to restore fiber optic communications.
  • FIG. 1 is perspective view of an illustrative apparatus for managing optical fiber, according to one implementation, including an access door.
  • FIG. 2 is a perspective view of the apparatus of FIG 1, with the access door open to expose a chassis and panel.
  • FIG. 3 is a perspective view of the apparatus of FIG. 2, shown with the chassis extended and panel pivoted downward/outward.
  • FIG. 4 is a flowchart depicting an illustrative method of managing optical fiber.
  • FIG. 5 is a perspective view of an illustrative optical fiber management system, including provisions for passing optical fibers to a second optical fiber management device.
  • FIG. 6 is a perspective view of the optical fiber management device of FIG.
  • FIG. 7 is a flow chart depicting another illustrative method of managing optical fiber.
  • FIG. 8 is a schematic view of an illustrative panel for mounting optical circuits including a parking lot for terminating optical fibers that are not in use.
  • FIG. 9 is a flow chart depicting an illustrative method of restoring fiber optic communication.
  • This disclosure is directed to apparatus and techniques for managing fibers, fiber management devices, techniques for expanding fiber optic networks, and methods for restoring fiber optic communications. Some apparatuses and techniques are described in the context of a chassis for managing optical fiber. Also, techniques for restoring fiber optic communication are described in the context of a panel. However, the apparatuses and techniques described herein may be used in other environments and are applicable to other contexts. In addition, the apparatuses, systems and methods may be used to manage fibers other than optical fibers, such as wire and the like.
  • Figure 1 illustrates an illustrative apparatus for managing optical fiber 100, which contains a cabinet 101, a chassis, and a panel (not shown).
  • the cabinet 101 includes an access door 102 for accessing the chassis and panel residing inside the cabinet 101.
  • the cabinet 101 also includes a left surface 104, a right surface 106, a top surface 108, a bottom surface 110 and a back surface 112.
  • the cabinet 100 may also contain provisions to mount the cabinet 101 to a utility pole, the wall of a structure or on the ground (e.g. on a concrete pad) (not shown).
  • Figure 2 illustrates apparatus 100 with the access door 102 open and the chassis 202 extended outward form the cabinet 101 to expose panel 204 and the optical circuits and components mounted to the panel 204.
  • the optical components may include splices, attenuators, connectors, switches, multiplexers, splitters/combiners, and the like.
  • the chassis 202 is attached to the interior of the cabinet 101 with slides, linear bearings, or other mechanical mechanisms that allow the chassis 202 to extend outward from the cabinet 101. This allows a service technician or repair person to access the optical circuits, and components (not shown) that are mounted to the panel 204.
  • the chassis 202 extends about nine inches beyond the cabinet 101. However, the chassis 202 could be designed to extend a greater or lesser distance depending on the depth of the cabinet 101, the height of the panel 204 and the amount of access required to expose the back of the panel 204.
  • the chassis 202 could additionally or alternatively be configured to pivot relative to the cabinet 101, be removable from the cabinet 101, and/or be otherwise movable relative to the cabinet 101.
  • the panel 204 is attached to the chassis 202 with a hinge or other attachment mechanism that allows the panel 204 to pivot or rotate relative to the chassis 202.
  • the panel 204 is attached to the top surface of the chassis 206 and the panel 204 pivots or tips downward (outward) to provide access to the back of the panel 208.
  • the panel 204 could be attached to the chassis 202 in a number of different configurations, so long as the panel 204 pivots relative to the chassis 202.
  • the panel 204 could pivot horizontally either toward or away from the access door 102 or the bottom of the panel 202 could pivot upward to expose the back of the panel 208.
  • the panel 204 may be fixed relative to the chassis 202 or slideable relative to the chassis 202.
  • the panel and chassis may be integrated together.
  • the panel 204 may also include an attachment device 212 for securing the panel 204 to the chassis 202 and preventing it form pivoting until the attachment device 212 is disconnected from the chassis 202.
  • the attachment device 212 may include a screw, bolt, cam lock or other suitable device for attaching the panel 204 to the chassis 202.
  • Figure 3 depicts the chassis 202 extended outward from the cabinet 101 with the panel 204 pivoted downward through an angle ( ⁇ ) exposing the fiber optic circuits and components (not shown) that are attached to the back of the panel 208. From this orientation a service technician or repair person can easily access the circuits and components to add additional circuits, make repairs, or other activities requiring access to the back of the panel 208.
  • the panel 204 is pivoted through an angle ( ⁇ ) of approximately 90 degrees to approximately 45 degrees relative to the top surface of the chassis 206. In another implementation, the angle ( ⁇ ) is between about 90 and about 60 degrees relative to the top of the chassis 206.
  • FIG. 4 is a flow chart depicting an illustrative method of managing optical fibers using the apparatus for managing optical fiber 100.
  • the cabinet access door 102 is unlocked and opened to expose the chassis 202 and panel 204, at block 402.
  • the cabinet could be opened by removing the door 102 from the cabinet 101, sliding the door 102 sideways, rolling the door 102 up, or other methods of providing access to the interior of the cabinet 101.
  • the chassis 202 is then extended outward from the cabinet 101 to provide access to the panel 204, at block 404.
  • the chassis 202 may be attached to the cabinet 101 with slides, linear bearings or other attachment devices that allow the chassis 202 to extend outward from the cabinet 101.
  • the attachment device 212 is disconnected from the chassis 202 and the panel 204 is pivoted forward to provide access to the back of the panel 208, at block 406. Once the panel 204 has been pivoted forward to expose the back of the panel 208, a technician or repair person can access the optical circuits mounted to the back of the panel 208.
  • FIG. 5 depicts an optical fiber management system 500 for managing optical fiber.
  • the fiber management system 500 may include a cabinet 101 for containing fiber optic components, a removable panel 502 for accessing the interior of the cabinet 101, a pass-through 504 for routing fiber optic cables through the cabinet 101, and attachment provisions 506 for attaching the system 500 to other systems 500.
  • the removable panel 502 is attached to the cabinet 101 such that it may be removed to provide access to the optical components residing within the cabinet 101.
  • the removable panel 502 is attached to the cabinet with one or more attachment devices such as screws, bolts, cam locks, rivets or other suitable removable fasteners. It should be appreciated that while the removable panel 502 is shown on the top surface 108 of the cabinet 101, removable panels 502 may additionally or alternatively be located on the left side 104, the right side 106, the bottom surface 110, or the back surface 112 of the cabinet 101.
  • the optical fiber management system 500 may also include provisions 508 for sealing the facing surfaces between the systems 500 to prevent water and contaminates from entering the cabinets 101.
  • the sealing provisions 508 may include gaskets, a face seals, O-rings or other suitable means of sealing the surfaces between the systems 500.
  • FIG. 6 depicts the optical fiber management system 500 including a pass through 504 for running fiber optic cables through the cabinet 101.
  • the purpose of the pass through 504 is to provide an isolated area 608, to separate the optical fiber from the remainder of the interior 610 of the cabinet 101 so that it can be run through the cabinet 101 without interfering with the other contents of the cabinet 101 (e.g., the chassis, other optical fiber cables, optical components, etc.).
  • the pass through 504 includes a first opening 602, a second opening 604, and a conduit 606.
  • the pass through 504 is shown running from the top surface 108 of the cabinet 101 to the bottom surface 110 of the cabinet 101. However, it should be appreciated that the pass thorough 504 could run between any two surfaces of the cabinet 101.
  • the exemplary pass through 504 is also shown running along an inner corner of the cabinet 101. However, the pass through 504 could run through any location within the cabinet 101 or externally along an outer surface of the cabinet 101.
  • the exemplary conduit 606 is shown with a rectangular cross section. However, it should be recognized that the conduit 606 could be configured in several alternative cross sections including: round, square, triangular or any other suitable cross section. It should also be appreciated that the pass through 504 may include a removable panel (not shown) for closing the pass through 504 when it is not in use.
  • Figure 7 depicts an illustrative method of managing optical fiber.
  • a first optical fiber management system 500 system is provided, at block 702.
  • the first optical fiber management system 500 may be prepared for installation by removing one or more access panels 502, removing a side (104, 106, 108, 110, 112), accessing a pass through 504, or placing one or more holes (not shown) in the cabinet 101.
  • the first optical fiber management system 500 may already be configured for installation.
  • a second optical fiber management system 500 is provided, at block 704.
  • the second optical fiber management system 500 may also be prepared for installation by removing one or more access panels 502, removing a side (104, 106, 108, 110, 112), removing a panel covering a pass through 504, or placing one or more holes (not shown) in the cabinet 101.
  • the second optical fiber management system 500 may also be preconfigured for installation.
  • the second optical fiber management system 500 is then placed proximate the first optical fiber management system 500, at block 706.
  • the second optical fiber management system 500 may be placed on top, below, or adjacent the first optical fiber management system 500 such that an optical fiber may pass between them.
  • the first and second optical fiber management systems 500 are aligned in order to align the open access panel(s) 502 and/or pass through(s) 504 and couple the management systems together, at block 708.
  • the optical fiber management systems 500 contain provisions 506 for attaching them together.
  • the attachment provisions 506 may include bolts, screws, cam locks, rivets or other suitable means of attaching the systems 500 together.
  • the optical fiber management systems 500 may also include provisions 508 for sealing the facing surfaces between the systems 500 to prevent water and contaminates from entering the cabinets 101.
  • the sealing provisions 508 may include gaskets, a face seals, O-rings or other suitable means of sealing the surfaces between the systems 500.
  • one or more fiber optic cables are routed through the access provisions in the systems 500, at block 710.
  • the cables could be routed from the first to the second optical fiber management system 500 or alternatively from the second to the first optical fiber management system 500. Additionally, any number of additional optical fiber management systems 500 may be attached in a similar manner.
  • optical fiber communication systems must be robust and reliable.
  • a single optical fiber is the size of a human hair and is relatively easily to damage or break a fiber.
  • FIG. 8 depicts an illustrative panel 802 that is part of an optical fiber management system.
  • the panel 802 is mounted inside a cabinet 101 that is configured to manage optical fiber.
  • the panel 802 could be mounted to a wall, a rack or other suitable support structure.
  • the illustrative panel 802 includes a plurality of feed adapters 804 that are mounted in a block like arrangement along the top of the panel 802.
  • a typical fiber optic cable contains 24 individual optical fibers and accordingly requires 24 feed adapters 804.
  • any suitable number of feed adapters 804 could be employed, depending on the size of the fiber optic cable and the design of the fiber management system.
  • the panel 802 may also include a parking lot 806 for terminating optical fibers that are not currently being used.
  • the representative parking lot 806 contains provisions for 24 individual optical fibers. However, any number of optical fibers could be terminated in the parking lot 806.
  • the optical fiber management system receives at least one 24 termination fiber optic cable and at least one optical fiber is terminated in the parking lot 806.
  • the optical fiber management system receives at least one 24 termination fiber optic cable and at least six optical fibers are terminated in the parking lot 806.
  • the optical fiber management system receives a fiber optic cable comprising a plurality of optical fibers and one half the plurality of optical fibers are terminated in the parking lot 806.
  • the panel 802 may contain a door 808 or other provision for accessing the back of the panel 810. The door 808 may be used to access the backside of the optical fiber terminations, reroute circuits, or clean the terminations.
  • the feed adapters 804 and parking lot 806 could be located on the same side of the panel 802.
  • Figure 9 depicts an illustrative method of restoring fiber optic communications in accordance with an implementation.
  • the cable service provider typically includes additional capacity to accommodate future demand. These unused fibers are routed to panel 802 and terminated in the parking lot 806, at block 902.
  • Damage to an optical fiber may be detected by measuring the data rate transmitted by the fiber. If the data rate falls below a threshold value or if the fiber stops transmitting all together, a photo detector receiver (not shown) can be used to detect the damage to the fiber, at block 904. Once the damaged fiber has been detected, a service technician or repair person is notified and the damaged fiber is disconnected from its feed adapter 804, at block 906. The service technician then removes a spare optical fiber from the parking lot 806 and places it in the vacant feed adapter 804, at block 908. The fiber optic communications system is then reconfigured to transmit data over the spare fiber and the communication is restored, at block 910. Alternatively, the service technician may test the circuit to verify that the connection has been properly made and that the spare fiber is not damaged also. [0048] While several illustrative implementations of structured cabling installations have been shown and described herein, it should be understood that the features of each of the installations may be rearranged, omitted, modified, and/or combined with one another.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

L'invention concerne un système de gestion de communication qui comprend un boîtier, un châssis et un panneau pour monter des circuits optiques. Dans une mise en œuvre, le châssis est couplé au boîtier et coulisse vers l'extérieur depuis le boîtier et le panneau est couplé au châssis et pivote autour d'un axe qui est perpendiculaire à la direction vers laquelle coulisse le châssis. Un système de gestion de communication peut comprendre un boîtier avec des première et seconde surfaces sensiblement parallèles. Dans une mise en œuvre, l'une des surfaces contient une disposition pour fixer le boîtier à un second boîtier et une caractéristique pour passer une fibre de communication du boîtier au second boîtier. Un second système de gestion de communication comprend un panneau pour monter des circuits optiques. Dans une mise en œuvre, le panneau comprend un adaptateur d'alimentation pour terminer des fibres optiques qui sont destinées à être utilisées et un endroit de stockage pour des terminaisons de fibres optiques qui ne sont pas destinées à être utilisées.
PCT/US2008/066965 2007-06-17 2008-06-13 Gestion de fibre extensible Ceased WO2008157386A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US94452307P 2007-06-17 2007-06-17
US60/944,523 2007-06-17

Publications (1)

Publication Number Publication Date
WO2008157386A1 true WO2008157386A1 (fr) 2008-12-24

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ID=40132434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/066965 Ceased WO2008157386A1 (fr) 2007-06-17 2008-06-13 Gestion de fibre extensible

Country Status (2)

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US (1) US7630608B2 (fr)
WO (1) WO2008157386A1 (fr)

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Also Published As

Publication number Publication date
US20080310810A1 (en) 2008-12-18
US7630608B2 (en) 2009-12-08

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